CN113327994A

CN113327994A - Solar module

Info

Publication number: CN113327994A
Application number: CN202110763910.5A
Authority: CN
Inventors: 张立伟; 林宏洋; 程谦礼
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-08-31
Anticipated expiration: 2041-07-06
Also published as: WO2023279274A1; TWI808484B; TW202303999A; CN113327994B

Abstract

The invention provides a solar module which comprises a back plate, a first packaging layer, a solar cell, a second packaging layer and a cover plate. The first packaging layer is arranged on the back plate. The solar cell is arranged on the first packaging layer. The second packaging layer is arranged on the solar cell. The cover plate is arranged on the second packaging layer and comprises a transparent substrate and a decorative layer. The decoration layer comprises a plurality of decoration color bands, wherein the decoration color bands are arranged on the lower surface of the transparent substrate, the decoration color bands and the transparent substrate jointly define a plurality of regular hexagonal hollow patterns which are arranged at intervals and a light transmitting area which is positioned between the regular hexagonal hollow patterns, and any one of the regular hexagonal hollow patterns comprises a color area and a light transmitting blank area which are formed by connecting the decoration color bands.

Description

Solar module

Technical Field

The invention relates to a solar module.

Background

Under the circumstances of petrochemical energy shortage and increasing energy demand, the development of renewable energy is one of the most important issues today. Renewable energy generally refers to a continuous and pollution-free natural energy source, such as solar energy, wind energy, water energy, tidal energy or biomass energy, etc., and it is a new trend to use solar energy as daily energy.

When the solar module is used for generating electricity, harmful substances such as carbon dioxide or nitride and the like are not generated in the electricity generation process of the solar cell, so that the environment is not polluted, and the application of the solar module for generating electricity is widely welcomed.

However, the traditional solar module has a single color, is difficult to meet aesthetic requirements, and limits the applicable fields. If the solar module is colored, the manufacturing cost is increased, and the generated power is reduced due to the influence of the transparency of the coloring material (such as glaze).

Disclosure of Invention

Some embodiments of the present disclosure provide a solar module comprising a back sheet, a first encapsulant layer, a solar cell, a second encapsulant layer, and a cover sheet. The first packaging layer is arranged on the back plate. The solar cell is arranged on the first packaging layer. The second packaging layer is arranged on the solar cell. The cover plate is arranged on the second packaging layer and comprises a transparent substrate and a decorative layer. The transparent substrate includes an upper surface and a lower surface opposite to the upper surface. The decorative layer comprises a plurality of decorative color bands, wherein the decorative color bands are arranged on the part of the lower surface, are in contact with the second packaging layer, and define a plurality of hollow patterns which are arranged at intervals with each other and a light transmitting area positioned between the hollow patterns together with the transparent substrate, wherein any one of the hollow patterns comprises a color area and a light transmitting blank area which are formed by connecting the decorative color bands; and the light-transmitting area is positioned between the hollow patterns, wherein the length of the light-transmitting area extending from the first point of the edge of the blank area to the second point of the edge of the blank area and penetrating through the center of the blank area is greater than the width of any one of the decorative color strips and the distance between the hollow patterns, and the ratio of the width of any one of the decorative color strips to the distance between the hollow patterns is 1:10 to 10: 1.

In some embodiments, the width of any one of the decorative color bands is greater than the distance that the hollow patterns are spaced from each other.

In some embodiments, the width of any one of the decorative color stripes is equal to the distance separating the hollow patterns from each other.

In some embodiments, the width of any one of the decorative color stripes is less than the distance separating the hollow patterns from each other.

Some embodiments of the present disclosure provide a solar module comprising a back sheet, a first encapsulant layer, a solar cell, a second encapsulant layer, and a cover sheet. The first packaging layer is arranged on the back plate. The solar cell is arranged on the first packaging layer. The second packaging layer is arranged on the solar cell. The cover plate is arranged on the second packaging layer and comprises a transparent substrate and a decorative layer. The transparent substrate includes an upper surface and a lower surface opposite to the upper surface. The decorative layer comprises a plurality of decorative color bands, wherein the decorative color bands are arranged on the part of the lower surface, are in contact with the second packaging layer, and define a plurality of regular hexagonal hollow patterns which are arranged at intervals and a light transmitting area positioned between the regular hexagonal hollow patterns together with the transparent substrate, wherein any one of the regular hexagonal hollow patterns comprises a color area and a light transmitting blank area which are formed by connecting the decorative color bands; and the light-transmitting area is positioned between the regular hexagonal hollow patterns.

In some embodiments, the blank area is circular, oval, or polygonal.

In some embodiments, the polygon is a regular hexagon.

Some embodiments of the present disclosure provide a solar module comprising a back sheet, a first encapsulant layer, a solar cell, a second encapsulant layer, and a cover sheet. The first packaging layer is arranged on the back plate. The solar cell is arranged on the first packaging layer. The second packaging layer is arranged on the solar cell. The cover plate is arranged on the second packaging layer and comprises a transparent substrate and a decorative layer. The transparent substrate includes an upper surface and a lower surface opposite to the upper surface. The decorative layer comprises a plurality of decorative color bands, wherein the decorative color bands are arranged on the part of the lower surface, are in contact with the second packaging layer, and define a plurality of hollow patterns which are arranged at intervals with each other and a light transmitting area positioned between the hollow patterns together with the transparent substrate, wherein any one of the hollow patterns comprises a color area and a light transmitting blank area which are formed by connecting the decorative color bands; and the light-transmitting area is positioned between the hollow patterns, wherein the ratio of the area of the color area to the area of the blank area is 1:50 to 4: 1.

In some embodiments, the hollow pattern comprises a plurality of color regions, and the color regions have the same area.

In some embodiments, the hollow pattern includes a plurality of color regions, and the color regions include a first group of color regions and a second group of color regions, wherein an area of any one of the first group of color regions is different from an area of any one of the second group of color regions.

In some embodiments, the first group of color regions are a different color than the second group of color regions.

In some embodiments, if the wavelength of the first color light reflected by the first group of color regions is greater than the wavelength of the second color light reflected by the second group of color regions, the area of the first group of color regions is smaller than the area of the second group of color regions.

Drawings

The present disclosure may be more completely understood in consideration of the following detailed description of embodiments in connection with the accompanying drawings.

Fig. 1A illustrates an apparatus schematic of a solar module of some embodiments of the present disclosure.

Fig. 1B to 1E respectively show patterns of a decoration layer and images of the decoration layer in the prior art and some embodiments of the present disclosure in application, wherein fig. 1B and 1D respectively show patterns of the decoration layer in the prior art and some embodiments of the present disclosure in application, and fig. 1C and 1E respectively show images of the decoration layer in application corresponding to fig. 1B and 1D.

Fig. 2A to 2E respectively show patterns of the decoration layers in some embodiments of the disclosure and images of the decoration layers corresponding to the patterns when the decoration layers are applied, where fig. 2A, 2C and 2E are the patterns of the decoration layers in different embodiments of the disclosure, and fig. 2B, 2D and 2F are the images of the decoration layers corresponding to fig. 2A, 2C and 2E, respectively, when the decoration layers are applied.

Fig. 3A to 3C respectively illustrate hollow patterns having blank regions with different shapes according to some embodiments of the disclosure.

Fig. 4 illustrates a hollow pattern in some embodiments of the present disclosure.

FIG. 5 illustrates a hollow pattern including color regions having different colors in some embodiments of the present disclosure.

Fig. 6 shows an apparatus schematic of a solar module of some embodiments of the present disclosure.

Wherein, the reference numbers:

100 solar module

110 back plate

120 first encapsulation layer

130 solar cell

140 second encapsulation layer

150: cover plate

152 transparent substrate

152A upper surface

152B lower surface

154 decorative layer

154a decorative color ribbon

162 hollow pattern

162A color zone

162B blank area

164 light-transmitting region

200 solar module

210 back plane

210B lower surface

220 first encapsulation layer

230 solar cell

240 second encapsulation layer

252 transparent substrate

252A upper surface

254a decorative color band

260 terminal box

P1 first Point

P2 second point

R0 center point

G1 first group of color regions

G2 second group color zone

G1A color space

G2A color space

a is length

b width of

c distance

Detailed Description

While the spirit of the present disclosure will be described in detail and illustrated in the drawings, those skilled in the art can now appreciate that the preferred embodiments and examples of the disclosure can be modified and varied from those taught in the present disclosure without departing from the spirit and scope of the present disclosure.

Like reference numerals refer to like elements throughout the specification. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connections. Further, "electrically connected" or "coupled" may mean that there are additional elements between the two elements.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," "layer" or "portion" discussed below could be termed a second element, component, region, layer or portion without departing from the teachings herein.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms, including "at least one", unless the content clearly indicates otherwise. "or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions integers, steps, operations, elements, components, and/or groups thereof.

Furthermore, relative terms, such as "lower" or "bottom" and "upper" or "top," may be used herein to describe one element's relationship to another element, as illustrated. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is turned over, elements described as being on the "lower" side of other elements would then be oriented on "upper" sides of the other elements. Thus, the exemplary term "lower" can include both an orientation of "lower" and "upper," depending on the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "below" or "beneath" can encompass both an orientation of above and below.

As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within an acceptable range of deviation of the specified value as determined by one of ordinary skill in the art, taking into account the measurement in question and the specified amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ± 30%, ± 20%, ± 10%, ± 5%. Further, as used herein, "about", "approximately", "similar" or "substantially" may be selected with respect to optical properties, etch properties or other properties, with a more acceptable range of deviation or standard deviation, and not all properties may be applied with one standard deviation.

Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Exemplary embodiments are described herein with reference to top view schematic illustrations that are idealized embodiments. Thus, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region shown or described as flat may generally have rough and/or nonlinear features. Further, the acute angles shown may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the claims.

The touch device of the present invention is described in more detail by referring to several embodiments, which are only for illustrative purposes and are not intended to limit the scope of the present invention, which is defined by the appended claims.

Fig. 1A illustrates an apparatus schematic of a solar module of some embodiments of the present disclosure. The solar module 100 includes a back sheet 110, a first encapsulant layer 120, a solar cell 130, a second encapsulant layer 140, and a cover sheet 150. The first encapsulation layer 120 is disposed on the back plate 110. The solar cell 130 is disposed on the first encapsulant layer 120. The second encapsulant layer 140 is disposed on the solar cell 130. The cover plate 150 is disposed on the second packaging layer 140, wherein the cover plate 150 includes a transparent substrate 152 and a decoration layer 154. The transparent substrate 152 includes an upper surface 152A and a lower surface 152B opposite the upper surface 152A. The decoration layer 154 includes a plurality of decoration color bands 154a, wherein the decoration color bands 154a may be disposed on a portion of the upper surface 152A (not shown) or a portion of the lower surface 152B (for example, fig. 1A), contact the second encapsulation layer 140, and define a plurality of hollow patterns 162 and a light-transmitting region 164 together with the transparent substrate 152. The hollow patterns 162 are uniformly arranged at a distance c, wherein any one of the hollow patterns 162 includes a color region 162A formed by connecting the decoration color bands 154a and a blank region 162B for transmitting light. The light-transmitting regions 164 are positioned between the hollow patterns 162. It should be noted that the dimensional relationship between the hollow pattern 162 and other elements in the present disclosure can be adjusted according to actual requirements, and is not limited by the drawings.

In some embodiments, the back-plate 110 is a black or dark-colored layered structure. In some embodiments, the back sheet 110 is a three-layer structure of polyester (polyester)/polyethylene terephthalate (PET)/polyvinyl fluoride (PVF) or a glass structure.

In some embodiments, the encapsulant layers (first encapsulant layer 120 and second encapsulant layer 140) comprise Ethylene Vinyl Acetate (EVA), polyolefin elastomer (POE), silicone (silicone), or combinations thereof. In some embodiments, the materials of the first encapsulation layer 120 and the second encapsulation layer 140 may be the same or different.

When the packaging layer is made of EVA, the EVA reacts with moisture to release acetic acid, which reacts with the material of the color zone 162A in the decorative layer 154 to decompose the material of the color zone 162A, causing visual defects.

In some embodiments, the solar cells 130 may be interconnected by a Multi Bus Bar (MBB), a shingled (shingled), or both, which reduces the visibility of the cells, improves the visual aesthetics of the solar module 100, and increases the generated power.

In some embodiments, the material of the transparent substrate 152 in the cover plate 150 is glass or a flexible polymer plate. In some embodiments, the material of the decorative layer 154 is a frit, for example, the frit is applied to the lower surface of the glass, forming a decorative color band 154 a. By adjusting the position of the decoration layer 154 on the lower surface 152B of the transparent substrate 152 and the color change of the decoration color band 154a, the visual change is enhanced, and the visual aesthetic property is enhanced.

In some embodiments, the top surface 152A of the transparent substrate 152 is sand-blasted to reduce glare caused by total reflection when the transparent substrate 152 is irradiated by ambient light.

In some embodiments, the ratio of the area of the decoration layer 154 to the area of the transparent substrate 152 is 5% to 50% to avoid too high a coverage area of the decoration layer 154 to reduce the power generation.

Some embodiments of the present disclosure may reduce the area of the decoration layer 154 by disposing the hollow pattern 162 (for example, a hollow regular hexagon surrounded by the decoration color bar 154a in fig. 1A), and adjusting the ratio range of the width of the decoration color bar 154a to the distance between the hollow patterns 162, adjusting the shape of the hollow patterns 162, or the ratio range of the areas of the color area 162A and the blank area 162B in the hollow patterns 162, thereby reducing the material cost of the decoration layer 154 and maintaining the visual aesthetics. For example, please see fig. 1B and fig. 1D.

Fig. 1B to 1D respectively show patterns of a decoration layer and images of the decoration layer in the prior art and some embodiments of the present disclosure in application, wherein fig. 1B and 1D respectively show patterns of the decoration layer in the prior art and some embodiments of the present disclosure in application, and fig. 1C and 1E respectively show images of the decoration layer in application corresponding to fig. 1B and 1D in application.

FIG. 1B is a schematic view of a pattern of a decorative layer composed of solid squares arranged at intervals, wherein the coverage rate (coating rate of glaze) of the pattern on a transparent substrate is 50%; fig. 1D shows that the hollow patterns 162 are uniformly arranged at intervals and have a regular hexagon shape, and the coverage rate (coating rate of glaze) of the color regions 162A on the transparent substrate 152 is 43.8%. Although the coating rate of the glaze in fig. 1D is lower than that in fig. 1B, in actual application, the visual effect of human eyes (if the non-colored regions (such as the blank region 162B and the transparent region 164) are too small to be distinguished by human eyes, the color of the color region 162A around the non-colored region is visually compensated by the small size), so that the images of fig. 1C (corresponding to fig. 1B, a solid pattern) and fig. 1E (corresponding to fig. 1D, a regular hexagonal hollow pattern) show similar visual effects when the decorative layer is applied. To facilitate the comparison, the images in the lower right corner of fig. 1B and 1D are enlarged images of the selected region in the upper left corner.

Therefore, under microscopic conditions, the dense regular stacking of the color regions 162A in the hollow patterns 162 can achieve similar visual aesthetics to the image formed by stacking the solid patterns of the existing decorative layer, and the amount of glaze required for the color regions 162A is reduced, thereby reducing the cost.

In some embodiments, the hollow pattern 162 may be a circular hollow pattern, an elliptical hollow pattern, or a polygonal hollow pattern, etc. In some embodiments, the hollow pattern 162 is a regular hexagonal hollow pattern. It should be noted that the hollow pattern 162 is a regular hexagonal hollow pattern, which can achieve the best packing in the decoration layer 154 (see fig. 1A) and provide better visual sense of three-dimensional effect than other hollow patterns 162. In other words, when the hollow pattern 162 is a regular hexagonal hollow pattern, the material consumption of the color region 162A is most saved, and the visual aesthetic property is the best.

In some embodiments of the present disclosure, the width b of the decoration color bar 154a can be adjusted within a proper range and still maintain the similar visual effect, specifically, see fig. 2A to 2E.

Fig. 2A to 2E respectively show patterns of the decoration layer in some embodiments of the disclosure and images of the decoration layer corresponding to the patterns when the decoration layer is applied, where fig. 2A, 2C and 2E are the patterns of the decoration layer in different embodiments of the disclosure, fig. 2B, 2D and 2F are the images corresponding to the decoration layers of fig. 2A, 2C and 2E, respectively, and in order to facilitate comparison, the image at the lower right corner of each figure is an enlarged image of the upper left corner frame selection area.

In fig. 2A, 2C and 2E, a length a of the blank region 162B (extending from a first point P1 on one edge to a second point P2 on the other edge and penetrating through a center point R0 of the blank region 162B, where the center point R0 means a geometric center (or centroid) of the blank region 162B) is greater than a width B of any one of the decoration color bands 154a and a distance C separating the hollow patterns 162 from each other, and a ratio of the width B of any one of the decoration color bands 154a to the distance C separating the hollow patterns 162 from each other is 1:10 to 10: 1.

In some embodiments, the ratio of the length a to the width b is 1.1:1 to 10:1, such as 1.1:1, 1.5:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, or a ratio in any of the foregoing intervals. In some embodiments, the ratio of length a to distance c is 1.1:1 to 10:1, such as 1.1:1, 1.5:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, or a ratio in any of the foregoing intervals.

In some embodiments, the ratio of width b to distance c is 1:10, 2:10, 3:10, 4:10, 5:10, 6:10, 7:10, 8:10, 9:10, 10:9:10:8, 10:7, 10:6, 10:5, 10:4, 10:3, 10:2, 10:1, or a ratio in any of the foregoing intervals.

Fig. 2A, 2C, and 2E differ in that the width b gradually decreases (i.e., the ratio between the width b and the distance C gradually decreases) with fig. 2A, 2C, and 2E. Specifically, in fig. 2A, the width b is larger than the distance c (for example, the width b: the distance c is 10:9:10:8, 10:7, 10:6, 10:5, 10:4, 10:3, 10:2, 10:1, or a ratio in any of the foregoing intervals). In fig. 2B, the width B is equal to the distance c (i.e., the width B: the distance c is 1: 1). In fig. 2C, width b is less than distance C (e.g., width b: distance C is 1:10, 2:10, 3:10, 4:10, 5:10, 6:10, 7:10, 8:10, 9:10, or a ratio in any of the foregoing intervals).

Please continue to refer to fig. 2B, fig. 2D and fig. 2F. It can be understood that, as long as the ratio of the width B to the distance C in fig. 2A, 2C and 2E is controlled to be between 1:10 and 10:1, the brightness of the partial region in the enlarged image at the lower right corner is slightly attenuated but the whole visual appearance is almost the same under the condition that the ratio of the width B to the distance C is gradually reduced (for example, the width B is gradually reduced or the distance C separating the hollow patterns 162 is gradually increased), so that the images in fig. 2B, 2D and 2F show similar visual effects when the decoration layer is applied.

Therefore, by appropriately reducing the ratio of the width b to the distance c of the decorative ribbon 154a, the amount of material used can be reduced and the manufacturing cost can be reduced while maintaining the visual appearance.

In some embodiments of the present disclosure, the hollow pattern 162 is a regular hexagonal hollow pattern to achieve the closest packing of the decoration layer 154, save the material usage of the color region 162A, and improve the visual three-dimensional property, and can be matched with different shapes of the blank region 162B, specifically, see fig. 3A to 3C.

Fig. 3A to 3C respectively illustrate the hollow patterns of blank regions with different shapes in some embodiments of the disclosure, in which the blank region 162B shown in fig. 3A is circular, the blank region 162B shown in fig. 3B is oval, or the blank region 162B shown in fig. 3C is regular hexagon. In some embodiments, the blank region 162B may be a polygon with other shapes (e.g., a regular polygon such as a regular triangle, a regular quadrangle, a regular octagon, a regular dodecagon, etc.).

It can be understood that when the hollow pattern 162 is a regular hexagonal hollow pattern and the blank region 162B is also a regular hexagon, the area of the color region 162A can be minimized by utilizing the highest matching degree of the shapes of the color region 162A and the blank region 162B, thereby minimizing the material usage of the color region 162A and reducing the cost.

Referring to fig. 2A to 3C, in some embodiments of the disclosure, the areas of the color area 162A and the blank area 162B may be adjusted by adjusting the width B of the decoration color band 154a, the length a of the blank area 162B, the distance C between the hollow patterns 162, the shape of the blank area 162B, or a combination thereof, such that the ratio of the area of the color area 162A to the area of the blank area 162B is 1:50 to 4:1, for example, 1:50, 5:50, 10:50, 15:50, 20:50, 25:50, 30:50, 35:50, 40:50, 45:50, 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 3.5:1, 4:1, or any ratio of the foregoing intervals, and the similar visual effect can be maintained. It will be appreciated that the smaller the area of the color zone 162A, the lower the amount of material required, which may provide cost savings in maintaining visual aesthetics.

In some embodiments, the hollow pattern 162 includes a plurality of color regions 162A therein, for example, see fig. 4.

Fig. 4 illustrates a hollow pattern in some embodiments of the present disclosure. The hollow pattern 162 includes a plurality of same color regions 162A, that is, the color, area, and shape of the individual color regions 162A are the same.

In some other embodiments, the areas of the color regions 162A of different colors may be adjusted to achieve uniform generated power by changing the shape or size of the color regions 162A, and the like.

It will be appreciated that as the reflected light wavelength increases (i.e., the color of the color zone goes from violet to red), the loss of photocurrent power increases.

Therefore, the total area of the color regions 162A of a specific color can be adjusted according to the color (i.e., the wavelength of the reflected light) of the color regions 162A, so as to achieve the same or similar photocurrent power in the color regions 162A of different colors.

See, for example, FIG. 5. FIG. 5 illustrates a hollow pattern including color regions having different colors in some embodiments of the present disclosure. In fig. 5, the hollow pattern 162 includes a plurality of color regions 162A, the color regions 162A include a first group color region G1 and a second group color region G2, wherein the colors of the first group color region G1 and the second group color region G2 are different, the first color light reflected by the first group color region G1 has a wavelength longer than the second color light reflected by the second group color region G2, and the area of the first group color region G1 is smaller than the area of the second group color region G2. In some embodiments, the area of partial color region G1A in first group color region G1 is less than the area of partial color region G2A in second group color region G2. In some other embodiments, the area of any color region G1A in first group color region G1 is less than the area of any color region G2A in second group color region G2.

More specifically, in order to realize the same photocurrent power for the color regions 162A of different colors, the photocurrent power corresponding to different colors can be used to calculate the area relationship between the color regions 162A of different colors in the following manner.

Firstly, when a first color group G1 is preset as a first color, the photocurrent power is X1, and the area is A1; when the second color group G2 is the second color, the photocurrent power is X2 and the area is a2, wherein the wavelength of the first color light reflected by the first color group G1 is greater than the wavelength of the second color light reflected by the second color group G2. Then, the total areas of the color regions 162A (the first group color region G1 and the second group color region G2) of different groups are preset to have the same photocurrent power, and the following equation is shown: a1xX1 ═ A2xX2+ (A1-A2) x 100%, whereby it is possible to obtain

The area conversion formula of (2).

In one embodiment, the first group color region G1 is purple with a photocurrent power per unit area of 38%, and the second group color region G2 is red with a photocurrent power per unit area of 33%. When the total area of the first group color region G1 is preset to 25 square millimeters, the total area of the second group color region G2 needs to be 23 square millimeters according to the area conversion formula, so that the same photocurrent power can be realized in the color regions of different colors.

Referring to fig. 6, fig. 6 is a schematic device diagram of a solar module according to some embodiments of the present disclosure. The solar module 200 is substantially similar to the solar module 100 of fig. 1A, except that the solar module 200 further includes a junction box 260 disposed on the lower surface 210B of the back sheet 210, and a glaze is applied to the upper surface 252A of the transparent substrate 252 to form a decorative ribbon 254 a. It should be noted that when the decorative color bar 254a is disposed on the upper surface 252A of the transparent substrate 252, the glare phenomenon caused by total reflection when the external light irradiates the transparent substrate 152 can be reduced, and the effect of alleviating the insolation and direct sunlight is also significant. Those skilled in the art can selectively add, modify, replace, or delete elements of the solar module 200 according to actual needs.

In summary, in some embodiments of the present disclosure, by setting the hollow patterns, and adjusting the ratio of the width of the decoration color ribbon to the distance between the hollow patterns, the shape of the hollow patterns is regular hexagon, or the area ratio of the middle color area and the blank area of the hollow patterns, similar visual aesthetics can be maintained with less material usage, thereby saving cost. In addition, when the shape of the hollow pattern is regular hexagon, the solar module can have better visual three-dimensional performance compared with other shapes.

While the present disclosure has been described with reference to various embodiments and examples, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and the scope of the disclosure should be limited only by the terms of the appended claims.

Claims

1. A solar module, comprising:

a back plate;

the first packaging layer is arranged on the back plate;

a solar cell disposed on the first packaging layer;

the second packaging layer is arranged on the solar cell; and

a cover plate disposed on the second package layer, the cover plate comprising:

a transparent substrate including an upper surface and a lower surface opposite to the upper surface; and

a decorative layer comprising a plurality of decorative ribbons, wherein the decorative ribbons are disposed on a portion of the lower surface, contact the second encapsulant layer, and define with the transparent substrate:

the hollow patterns are arranged at intervals, wherein any one of the hollow patterns comprises a color area formed by connecting the decorative color bands and a blank area which is transparent; and

a light-transmitting region is positioned between the hollow patterns,

wherein a length extending from a first point of the margin to a second point of the margin and penetrating through the center of the margin is greater than a width of any one of the decoration color stripes and the distance between the hollow patterns, and the ratio of the width of any one of the decoration color stripes to the distance between the hollow patterns is 1:10 to 10: 1.

2. The solar module of claim 1, wherein the width of any one of the decorative ribbons is greater than the distance separating the hollow patterns.

3. The solar module of claim 1, wherein the width of any one of the decorative ribbons is equal to the distance separating the hollow patterns.

4. The solar module of claim 1, wherein the width of any one of the decorative ribbons is less than the distance separating the hollow patterns.

5. A solar module, comprising:

a back plate;

the first packaging layer is arranged on the back plate;

a solar cell disposed on the first packaging layer;

the second packaging layer is arranged on the solar cell; and

a cover plate disposed on the second package layer, the cover plate comprising:

the plurality of regular hexagonal hollow patterns are arranged at intervals, wherein any one of the regular hexagonal hollow patterns comprises a color area formed by connecting the decorative color bands and a blank area which is transparent; and

a light-transmitting region is positioned among the regular hexagonal hollow patterns.

6. The solar module of claim 5, wherein the blank area is a circle, an ellipse, or a polygon.

7. The solar module of claim 6, wherein the polygon is a regular hexagon.

8. A solar module, comprising:

a back plate;

the first packaging layer is arranged on the back plate;

a solar cell disposed on the first packaging layer;

the second packaging layer is arranged on the solar cell; and

a cover plate disposed on the second package layer, the cover plate comprising:

a light-transmitting region is positioned between the hollow patterns,

wherein the ratio of the area of the color region to the area of the blank region is 1:50 to 4: 1.

9. The solar module as claimed in claim 8, wherein the hollow patterns comprise a plurality of color regions, and the color regions have the same area.

10. The solar module of claim 8, wherein the hollow patterns comprise a plurality of color zones, the color zones comprising a first group of color zones and a second group of color zones, wherein an area of any one of the first group of color zones is different from an area of any one of the second group of color zones.

11. The solar module as claimed in claim 10, wherein the first group of color regions has a color different from the color of the second group of color regions.

12. The solar module as claimed in claim 11, wherein if the wavelength of a first color light reflected from the first group of color regions is greater than the wavelength of a second color light reflected from the second group of color regions, the area of the first group of color regions is smaller than the area of the second group of color regions.